Treatment Operations


The Valley Sanitary District operates its own Water Reclamation Facility to treat wastewater from our Service district area.

The District complies with all local, state and federal regulations and endeavors to develop and maintain a sustainable environmental process to safeguard the public health and safety.

The treatment plant treats approximately 9.5 million gallons per day (MGD) of wastewater. The wastewater is treated through one of two individual treatment processes:

  • Activated Sludge Process
  • Oxidation Ponds

The activated sludge process treats a majority of the wastewater that inters the treatment plant which is currently 6.5 million gallons each day. The activated sludge process currently has a maximum treatment capacity of 9.5 million gallons per day.

The oxidation ponds currently receives all of our waste solids and approximately 0.5 million gallons of wastewater each day. The maximum treatment capacity of the oxidation ponds are currently 2.5 million gallons per day.

The two treatment processes combined give the treatment plant a total treatment capacity of 12.0 million gallons per day. The treated wastewater is discharged into the whitewater storm channel and becomes a source of freshwater replenishment to the Salton Sea.

Staff Contacts

Name Title
Ian Wilson Chief Plant Operator
James Mills Operations Supervisor